atomic weight

noun

Definition of atomic weight

  1. :  the mass of one atom of an element; specifically :  the average mass of an atom of an element as it occurs in nature that is expressed in atomic mass units — see element table

First Known Use of atomic weight

1819


Medical Dictionary

atomic weight

noun

Medical Definition of atomic weight

  1. :  the mass of one atom of an element; specifically :  the average mass of an atom of an element as it occurs in nature that is expressed in atomic mass units—see element table


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to be a fixed element or attribute

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